A5083085863- Microgrid Control and Optimization
- Islanding Detection in Power Systems
- Smart Grid Energy Management
- Photovoltaic System Optimization Techniques
- solar cell performance optimization
- Optimal Power Flow Distribution
- Smart Grid Security and Resilience
- Solar Radiation and Photovoltaics
- Advanced DC-DC Converters
- Machine Learning and ELM
- Multi-Criteria Decision Making
- Digital Transformation in Industry
- Power System Optimization and Stability
- Fuzzy Systems and Optimization
- Silicon and Solar Cell Technologies
- Advanced Optimization Algorithms Research
- Solar Thermal and Photovoltaic Systems
- Real-time simulation and control systems
- Advanced Neural Network Applications
- Brain Tumor Detection and Classification
- Multilevel Inverters and Converters
- Optimization and Variational Analysis
- Fuzzy Logic and Control Systems
- Spacecraft Dynamics and Control
Indian Institute of Technology Kanpur
2021-2024
Bennett University
2024
McMaster University
2024
University of Calgary
2024
University of Nottingham
2024
Polytechnic University of Turin
2024
Teachers Development Group
2024
S&C Electric Company (United States)
2024
DuPont (United States)
2024
Indian Institute of Technology Bombay
2021-2023
This paper presents a new global maximum power point tracking (GMPPT) technique for the photovoltaic (PV) array under uniform as well non-uniform solar irradiance. The proposed method uses I-V characteristic of PV to track peak. intelligent is based on computation settling time voltage reference given by GMPPT algorithm. computed information used distinguish between current source region and operating point. Thus, it possible identify change in operation, which utilized detect presence local...
The droop control laws lack proportional power sharing in transient as well steady-state conditions AC microgrids. This paper proposes an adaptive coefficients based strategy to address this issue. are adaptively changed on the output currents of distributed generators. An appreciable improvement is achieved by using instead fixed values. proposed can be used with conventional inverse microgrids enhance their performance. method does not require any type additional communication or extra...
This article proposes a methodto track the global peak (GP) when photovoltaic (PV) arrays receive uniform or partial irradiance. The proposed method employs current–voltage ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">I</i> – xmlns:xlink="http://www.w3.org/1999/xlink">V</i> ) curve of PV generator to maximum power point. It can distinguish whether operating voltage is lying in source region (VSR) current (CSR)...
In order to improve reliability, modular inverter configurations with both ac and dc ports connected in parallel are employed. Typically, power sharing between these modules is achieved using droop control. The circulating current flow an issue that needs be addressed. These currents can categorized into two types, namely, cross zero-sequence currents, caused by differences output impedance, dead times, or nonsynchronized pulses the modules. This article focuses on reducing arising due...
This paper proposes a new global MPPT method for PV array under uniform as well non-uniform insolation. The proposed first finds out whether the operating voltage lies in current source region (CSR) or (VSR). If CSR, skips settling of at reference and moves to next voltage. reduces tracking time takes more settle when CSR. Moreover, applies P&O find peak whenever from VSR CSR always between them. Finally, it compares measured power various local peaks peak. performance algorithm is further...
This paper proposes a new global MPPT method for PV array under non-uniform insolation. The proposed first tracks the knee point using I-V characteristic which is near to local peak of P-V curve. Then it compares measured power at various points find region containing peak. Finally, uses P&O exact Thus avoids use track every performance algorithm further verified in MATLAB/Simulink. results show that able during Partially Shaded Conditions.
In this study, a control strategy to proportionally share the power among distribution generation (DG) units in transient as well steady-state conditions is proposed. The based on droop method, which can ensure parallel operation of inverter DGs using their local measurements (without any communication). However, technique have slow response and cannot proportional sharing well. paper, an appreciable improvement achieved by adaptive coefficients instead fixed values. are adaptively changed...
Paralleling of smaller rated modular converters is done to enhance the reliability and reduce costs which would be incurred by installation a single converter larger rating. This work focusses on power sharing between distributed generators are based inverters with parallel AC DC buses. Two strategies adaptive variation virtual impedance (VI) have been utilized, can integrated seamlessly conventional inverse droop controllers. communication-less (decentralized) control has validated for its...
Monitoring of remote microgrids helps in providing better service to the consumers. Prior idea location/nature fault and/or device malfunction saves a lot time for maintenance engineer during outrages. Thus, off-site monitoring ensures proper operation as well efficient work execution clearance it gives an visiting about location and malfunctioning devices. In this paper, digital twin based scheme is presented power flow microgrid. Digital real-time, physics simulation integrated with real...
Smaller rated modular converters are often connected in parallel, as opposed to the installation of a single converter with high power rating. This is typically done achieve more reliable supply reduced cost. The work presented this article directed toward achieving proportional load sharing between distributed generators (DGs) comprising inverters common ac and dc buses microgrids that islanded. Two new schemes have been proposed this, their performances compared recently decentralized...
Power sharing amongst sources can be improved in an islanded microgrid by utilizing the information of network’s impedance. In this paper, impedance based model reference adaptive system (Z-MRAS) scheme is proposed to estimate angle for converter distributed generators (DGs) mode. The focus enhance proportional apparent power between DGs operated using generalized droop control (GDC). performance GDC depends on effective tie-line and MRAS provides feedback estimated angle. accuracy...
State estimation techniques are used in microgrids for achieving several objectives like stability improvement, power sharing monitoring etc. The states that transmitted to the estimator need optimized so communication system with a low bandwidth can be used. This paper proposes an empirical observability Gramian based binary search algorithm find optimal estimator. proposed scheme is validated using simulations MATLAB/Simulink environment.
Remote microgrids are used for the electrification of areas where connection from main grid is not feasible and economical. Further, to maintain system economical, monitoring station these remote should be located at a common place engineers. The essential analyze power flow system. This in turn can fault detection localization which gives an idea visiting engineer about malfunctioning devices. However, data transmitted over communication channel minimum so that lowbandwidth utilized. paper...
Improved power sharing can be achieved with the information of impedances a network. A model reference adaptive system (MRAS) based scheme to estimate effective line impedance as seen by distributed generators (DGs) in an islanded microgrid is proposed this paper. The estimated then used generalized droop control achieve enhanced proportional sharing. As depends on DG, MRAS impedance, which feedback controller. efficacy method tested for isolated MATLAB and real time simulator (Opal-RT)....
Stringent constraints on space and reliability in urban active distribution networks demand the need for routing power cables underground (UG). Such lines are predominantly capacitive nature unlike overhead (which inductive). This work focuses use of an adaptive droop coefficient based control scheme with L, C a nd R droops applied to inverter distributed generators (DGs) which interconnected through UG cables. The focus is improved proportional sharing among sources different types loads...
This digest describes the design, development and testing of a computer-based testbed for validating developing monitoring techniques remote microgrids. The is developed using POSIX threads to emulate separately microgrid model, feedback data communication mechanism, locally implemented technique. need be synchronized execute in parallel on host computer. setup validated with model an islanded being monitored restricted by Kalman filter based method shown achieve good performance even under...
Mitigation of circulating currents in islanded AC microgrids is a major concern as it results the instability system, overheating equipment and reduced transmission efficiency which are caused by same. The four factors contribute to flow parallel DG systems are: output voltage magnitude difference, phase DC offsets voltages sensor offsets/malfunction frequency difference. Due use droop control mode, last case does not exist. This paper investigates differential mode current an microgrid due...